package com.heima.wemedia.service.impl;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.file.service.FileStorageService;
import com.heima.model.common.dtos.PageRequestDto;
import com.heima.model.common.dtos.PageResponseResult;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmMaterialDto;
import com.heima.model.wemedia.pojos.WmMaterial;
import com.heima.utils.thread.WmThreadLocalUtil;
import com.heima.wemedia.mapper.WmMaterialMapper;
import com.heima.wemedia.service.WmMaterialService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;


import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.Date;
import java.util.UUID;

@Slf4j
@Service
@Transactional
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements WmMaterialService {
    @Autowired
    private FileStorageService fileStorageService;  //上传到minio中

    @Override //素材列表查询
    public ResponseResult findList(WmMaterialDto wmMaterialDto) {
//1.检查参数
        wmMaterialDto.checkParam();   //checkParam  todo
//        2.分页查询
        IPage page = new Page(wmMaterialDto.getPage(), wmMaterialDto.getSize());
        LambdaQueryWrapper<WmMaterial> lqw = new LambdaQueryWrapper<>();
        //是否收藏
        lqw.eq(wmMaterialDto.getIsCollection() != null, WmMaterial::getIsCollection, wmMaterialDto.getIsCollection());
//        按照用户查询
        lqw.eq(WmMaterial::getUserId, WmThreadLocalUtil.getUser().getId());
        //按照时间倒序
        lqw.orderByDesc(WmMaterial::getCreatedTime);

        page=  page(page, lqw);

//        3.返回结果
        ResponseResult responseResult = new PageResponseResult(wmMaterialDto.getPage(), wmMaterialDto.getSize(),(int)page.getTotal());  //todo 为什么用多态
        responseResult.setData(page.getRecords());  //todo
        return responseResult;

/*
//1.检查参数
        wmMaterialDto.checkParam();
//2.分页查询
        IPage page = new Page(wmMaterialDto.getPage(),wmMaterialDto.getSize());
        LambdaQueryWrapper<WmMaterial> lambdaQueryWrapper = new LambdaQueryWrapper<>();
//是否收藏
        if(wmMaterialDto.getIsCollection() != null && wmMaterialDto.getIsCollection() == 1){
            lambdaQueryWrapper.eq(WmMaterial::getIsCollection,wmMaterialDto.getIsCollection());
        }
//按照用户查询
        lambdaQueryWrapper.eq(WmMaterial::getUserId,WmThreadLocalUtil.getUser().getId());
//按照时间倒序
        lambdaQueryWrapper.orderByDesc(WmMaterial::getCreatedTime);
        page = page(page,lambdaQueryWrapper);
//3.结果返回
        ResponseResult responseResult = new PageResponseResult(wmMaterialDto.getPage(),wmMaterialDto.getSize(),
                (int)page.getTotal());
        responseResult.setData(page.getRecords());
        return responseResult;
*/

    }

    @Override
    public ResponseResult uploadPicture(MultipartFile multipartFile) {
//        图片上传

//1.检查参数
        if (multipartFile == null || multipartFile.getSize() == 0) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
//        2.上传图片到minIO中
        String fileName = UUID.randomUUID().toString().replace("-", "");
        String originalFilename = multipartFile.getOriginalFilename();  //todo
        String postfix = originalFilename.substring(originalFilename.lastIndexOf("."));  //.jpg
        String fileId = null;
        try {
            fileId = fileStorageService.uploadImgFile("", fileName + postfix, multipartFile.getInputStream());// multipartFile.getInputStream() todo
            log.info("上传图片到MinIO中，fileId:{}", fileId);
        } catch (IOException e) {
            e.printStackTrace();
            log.error("WmMaterialServiceImpl-上传文件失败");
            throw new RuntimeException("WmMaterialServiceImpl-上传文件失败");
        }
//        3.保存到数据库中
        WmMaterial wmMaterial = new WmMaterial();
        wmMaterial.setUserId(WmThreadLocalUtil.getUser().getId());

        wmMaterial.setUrl(fileId);
        wmMaterial.setIsCollection((short) 0);
        wmMaterial.setType((short) 0);
        wmMaterial.setCreatedTime(new Date());
        save(wmMaterial);  //todo

//        4.返回结果
        return ResponseResult.okResult(wmMaterial);  //todo
    }
}
